SN5497J

The SN5497J is a monolithic, fully synchronous, programmable 6-bit binary rate multiplier manufactured by Texas Instruments. It employs Series 54/74 TTL circuitry, achieving typical maximum operating frequencies of 32 MHz. This device is designed for fixed-rate or variable-rate frequency division, making it suitable for applications in arithmetic, radar, and digital-to-analog (D/A) or analog-to-digital (A/D) conversion operations.

Key features include buffered clock, clear, and enable inputs for operational control, along with a strobe input to manage the rate input/decoding AND-OR-INVERT gates. The outputs are equipped with additional gating for cascading devices to achieve higher bit counts, such as 12-bit rate multiplication. The SN5497J operates within a military temperature range of -55 to 125°C and includes a partial power-down feature (Ioff).

The device is packaged in a 16-pin CDIP (J) format. Its functionality allows for output frequencies that are a fraction of the input frequency, determined by the rate input settings. The unity/cascade input provides flexibility for passing clock frequencies or controlling the Y output under specific conditions.